* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
    font-family: 'Inter', sans-serif;
    color: #2c3e50;
    background-color: #ffffff;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0;
    font-weight: 700;
    line-height: 1.25;
}

h1 { font-size: calc(1.375rem + 1.5vw); }
h2 { font-size: calc(1.325rem + .9vw); }
h3 { font-size: calc(1.3rem + .6vw); }
h4 { font-size: calc(1.275rem + .3vw); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    display: inline-block;
    transition: color .15s ease-in-out, opacity .15s ease-in-out;
    color: #e74c3c;
}

a:hover {
    opacity: .8;
    color: #c0392b;
}

img {
    vertical-align: middle;
    max-width: 100%;
    height: auto;
}

button {
    cursor: pointer;
}

input, button, select, textarea {
    margin: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

.display-3 {
    font-size: calc(1.575rem + 3.9vw);
    font-weight: 700;
    line-height: 1.1;
}

.display-4 {
    font-size: calc(1.475rem + 2.7vw);
    font-weight: 700;
    line-height: 1.1;
}

.display-5 {
    font-size: calc(1.425rem + 2.1vw);
    font-weight: 700;
    line-height: 1.1;
}

.container {
    width: 100%;
    padding-right: 0.75rem;
    padding-left: 0.75rem;
    margin-right: auto;
    margin-left: auto;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -0.75rem;
    margin-left: -0.75rem;
}

.row > * {
    flex-shrink: 0;
    width: 100%;
    max-width: 100%;
    padding-right: 0.75rem;
    padding-left: 0.75rem;
}

.col-12 { flex: 0 0 auto; width: 100%; }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-4 { flex: 0 0 auto; width: 33.33333333%; }
.col-3 { flex: 0 0 auto; width: 25%; }

.form-label {
    margin-bottom: .5rem;
    display: inline-block;
}

.form-control, .form-select {
    display: block;
    width: 100%;
    padding: .825rem 1.1875rem;
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 1.2;
    background-color: #ffffff;
    border: 2px solid #bdc3c7;
    border-radius: .625rem;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    outline: 0;
    border-color: #e74c3c;
    box-shadow: 0 0 0 0.25rem rgba(231, 76, 60, 0.25);
}

.form-select {
    padding-right: 3.5625rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right .75rem center;
    background-size: 16px 12px;
}

.form-check {
    display: block;
    min-height: 1.5rem;
    padding-left: 0;
    margin-bottom: 0;
}

.form-check-label {
    cursor: pointer;
}

.btn {
    display: inline-block;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    padding: .825rem 1.1875rem;
    font-size: 1.125rem;
    border-radius: .625rem;
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out;
    text-decoration: none;
}

.btn-primary {
    background-color: #e74c3c;
    color: white;
    border-color: #e74c3c;
}

.btn-primary:hover {
    background-color: #c0392b;
    border-color: #c0392b;
    color: white;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
    border-color: #f39c12;
}

.btn-warning:hover {
    background-color: #e67e22;
    border-color: #e67e22;
    color: white;
}

.btn-lg {
    padding: 1rem 1.5rem;
    font-size: 1.25rem;
}

.nav-link {
    display: block;
    padding: .5rem 1rem;
    transition: color .15s ease-in-out;
    color: #2c3e50;
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    color: #e74c3c;
}

.navbar {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding-top: .5rem;
    padding-bottom: .5rem;
}

.navbar > .container {
    display: flex;
    flex-wrap: inherit;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    padding-top: .40625rem;
    padding-bottom: .40625rem;
    margin-right: 1rem;
    font-size: 1.125rem;
    white-space: nowrap;
    font-weight: 700;
    color: #e74c3c;
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.navbar-collapse {
    flex-basis: 100%;
    flex-grow: 1;
    align-items: center;
}

.navbar-toggler {
    padding: .25rem .75rem;
    font-size: 1.125rem;
    line-height: 1;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: .625rem;
}

.navbar-toggler-icon {
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2833, 37, 41, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.collapse:not(.show) {
    display: none;
}

.fixed-top {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1030;
}

.shadow-sm { box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075); }
.shadow { box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .15); }
.shadow-lg { box-shadow: 0 1rem 3rem rgba(0, 0, 0, .175); }

.bg-primary { background-color: #e74c3c; }
.bg-success { background-color: #27ae60; }
.bg-warning { background-color: #f39c12; }
.bg-info { background-color: #3498db; }
.bg-light { background-color: #ecf0f1; }
.bg-dark { background-color: #2c3e50; }
.bg-white { background-color: #ffffff; }
.bg-secondary { background-color: #95a5a6; }

.text-primary { color: #e74c3c; }
.text-success { color: #27ae60; }
.text-warning { color: #f39c12; }
.text-info { color: #3498db; }
.text-light { color: #ecf0f1; }
.text-dark { color: #2c3e50; }
.text-white { color: #ffffff; }
.text-muted { color: #7f8c8d; }

.bg-opacity-10 { --bs-bg-opacity: 0.1; background-color: rgba(var(--bs-bg-color-rgb), var(--bs-bg-opacity)); }
.bg-opacity-20 { --bs-bg-opacity: 0.2; background-color: rgba(var(--bs-bg-color-rgb), var(--bs-bg-opacity)); }
.bg-opacity-90 { --bs-bg-opacity: 0.9; background-color: rgba(var(--bs-bg-color-rgb), var(--bs-bg-opacity)); }

.opacity-90 { opacity: 0.9; }

.d-flex { display: flex; }
.d-inline-block { display: inline-block; }
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }
.w-100 { width: 100%; }
.w-40 { width: 40%; }
.h-100 { height: 100%; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.text-center { text-align: center; }
.text-decoration-none { text-decoration: none; }
.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.list-unstyled { list-style: none; padding-left: 0; }
.rounded-3 { border-radius: 0.375rem; }
.rounded-4 { border-radius: 0.5rem; }
.rounded-5 { border-radius: 0.75rem; }
.rounded-circle { border-radius: 50%; }
.rounded-pill { border-radius: 50rem; }
.overflow-hidden { overflow: hidden; }

.mt-1 { margin-top: 0.25rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-15 { margin-top: 3.75rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-15 { margin-bottom: 3.75rem; }
.me-3 { margin-right: 0.75rem; }
.me-4 { margin-right: 1rem; }
.ms-auto { margin-left: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }

.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-12 { padding-left: 3rem; padding-right: 3rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-15 { padding-top: 3.75rem; padding-bottom: 3.75rem; }

.fs-1 { font-size: 1.5rem; }
.fs-2 { font-size: 1.375rem; }
.fs-3 { font-size: 1.25rem; }
.fs-4 { font-size: 1.125rem; }

.top-0 { top: 0; }
.start-0 { left: 0; }
.end-0 { right: 0; }
.bottom-0 { bottom: 0; }

.border-secondary { border-color: #95a5a6; }

.hero-section {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
}

@media (min-width: 576px) {
    .container { max-width: 540px; }
    .col-sm-6 { flex: 0 0 auto; width: 50%; }
}

@media (min-width: 768px) {
    .container { max-width: 720px; }
    .col-md-6 { flex: 0 0 auto; width: 50%; }
    .col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
    .text-md-end { text-align: right; }
}

@media (min-width: 992px) {
    .container { max-width: 960px; }
    .col-lg-3 { flex: 0 0 auto; width: 25%; }
    .col-lg-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-lg-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-lg-6 { flex: 0 0 auto; width: 50%; }
    .col-lg-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-lg-8 { flex: 0 0 auto; width: 66.66666667%; }

    .navbar-expand-lg {
        flex-wrap: nowrap;
        justify-content: flex-start;
    }
    .navbar-expand-lg .navbar-nav {
        flex-direction: row;
    }
    .navbar-expand-lg .navbar-nav .nav-link {
        padding-right: .5rem;
        padding-left: .5rem;
    }
    .navbar-expand-lg .navbar-collapse {
        display: flex;
        flex-basis: auto;
    }
    .navbar-expand-lg .navbar-toggler {
        display: none;
    }

    .py-lg-25 { padding-top: 6.25rem; padding-bottom: 6.25rem; }
    .py-lg-24 { padding-top: 6rem; padding-bottom: 6rem; }
    .mt-lg-0 { margin-top: 0; }
    .mt-lg-12 { margin-top: 3rem; }
    .mb-lg-0 { margin-bottom: 0; }
    .text-lg-start { text-align: left; }
}

@media (min-width: 1200px) {
    .container { max-width: 1140px; }
    .col-xl-6 { flex: 0 0 auto; width: 50%; }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    .display-3 { font-size: 4.5rem; }
    .display-4 { font-size: 3.5rem; }
    .display-5 { font-size: 3rem; }
}

@media (min-width: 1400px) {
    .container { max-width: 1320px; }
}input {
     width: 1.5rem;
     height: 1.5rem;
     margin-top: 0;
     margin-right: .5rem;
     vertical-align: top;
     background-color: transparent;
     border: 2px solid #bdc3c7;
     appearance: none;
     border-radius: .25em;
 }

.form-check-input:checked {
    background-color: #e74c3c;
    border-color: #e74c3c;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}